Pentax K100D vs Sony RX100 IV

Its time to take a more detailed look at the Pentax K100D vs Sony RX100 IV, one being a Entry-Level DSLR and the other is a Large Sensor Compact by manufacturers Pentax and Sony. There is a sizeable difference among the sensor resolutions of the K100D (6MP) and RX100 IV (20MP) and the K100D (APS-C) and RX100 IV (1") have different sensor measurements.

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The K100D was introduced 9 years before the RX100 IV and that is a fairly large gap as far as camera tech is concerned. The two cameras feature different body design with the Pentax K100D being a Compact SLR camera and the Sony RX100 IV being a Large Sensor Compact camera.

Before we go right into a in-depth comparison, here is a brief overview of how the K100D scores vs the RX100 IV for portability, imaging, features and an overall rating.

Following is a sample of the gallery pictures for Pentax K100D and Sony Cyber-shot DSC-RX100 IV. The whole galleries are available at Pentax K100D Gallery and Sony RX100 IV Gallery.

For anyone who is planning to carry your camera frequently, you'll need to take into account its weight and volume. The Pentax K100D provides outside dimensions of 129mm x 93mm x 70mm (5.1" x 3.7" x 2.8") having a weight of 660 grams (1.46 lbs) whilst the Sony RX100 IV has sizing of 102mm x 58mm x 41mm (4.0" x 2.3" x 1.6") with a weight of 298 grams (0.66 lbs).

Check the Pentax K100D vs Sony RX100 IV in the all new Camera with Lens Size Comparison Tool.

Do not forget, the weight of an Interchangeable Lens Camera will vary based on the lens you are utilising at the time. Following is a front view dimensions comparison of the K100D vs the RX100 IV.

Factoring in size and weight, the portability rating of the K100D and RX100 IV is 64 and 89 respectively.

Generally, it is tough to visualize the difference in sensor sizing only by checking out a spec sheet. The graphic underneath should offer you a stronger sense of the sensor sizes in the K100D and RX100 IV.

Clearly, both of these cameras come with different megapixel count and different sensor sizing. The K100D using its larger sensor is going to make achieving shallow depth of field less difficult and the Sony RX100 IV will produce more detail using its extra 14 Megapixels. Greater resolution will also let you crop photos a good deal more aggressively. The older K100D will be disadvantaged when it comes to sensor innovation.